Ventilator.



W. J. COLEMAN.

VENTILA'IOR.

APPLICATION FILED MAY 28, 1914.

1,128,414. Patented Feb. 16, 1915.

2 SHEETS-SHEET 1.

THE NORRIS PFTERS co. FHOTO-LITHQ, \VASHINC I'ON D f W. J. COLEMAN.

VENTILATOR.

APPLICATION FILED MAY 28, 1914.

Patented Feb. 16, 1915.

2 SHEETS-SHEET 2.

. ammo/Mom W J 6026 mam THE NORR/s PETERS CO. FHOTO LITHOH WASHINGrQN. D C.

srarns rarnn r car on WILLIAM J. COLEMAN, or HYDE PARK, MASSACHUSETTS.

VENTILATOR.

Specification of Letters iatent.

I PatentedFe-b. 16, 1915.

Application filed May 28, 1914. Serial No. 841,577.

and has as its primary object to provide a device of this character which may be readily attached within the car and so constructed as to be adapted to supply, when desired, a constant current of fresh air within the car and so arranged that such current of fresh air will be delivered within the car in such a manner as to not create a draft therein such as would result in the discomfort of the passengers of the car.

A further object of the invention is to provide a ventilator so constructed that the in coming currents of air may be delivered downwardly within the car to thus cause warm air contained within the car to rise to the top thereof, and so constructed as to provide for the delivery of the foul air within the car exteriorly thereof.

The invention has as a further object to provide a ventilator which may be regulated to increase or diminish both the incoming and outgoing currents of air therein, and so constructed that the motion of the car will be utilized to cause a draft or suction within the ventilator tending to draw the foul air within the car therefrom to be delivered exteriorly of the car. And the invention has as a still further object to generally improve the construction and increase the efficiency of devices of the above described character.

WVith these and other objects in view my invention will be more fully described illustrated in the accompanying drawings and then specifically pointed out in the claims which are attached to and form a part of this application.

In the accompanying drawings :Figure 1 is a side elevation showing my improved ventilator applied in operative position, the portion of the car being shown in section conventionally illustrated. Fig. 2 is a detail perspective view of the ventilator particularly showing the arrangement of the shutters in one end thereof and illustrating the draft pan detached but in proper relative position. Fig. 3 is a longitudinal sectional view of the ventilator showing the arrangement of the dampers provided for regulating the incoming currents of air, and Fig. 4 1s a transverse sectional view taken on the line 47-4: of 3. v

Corresponding and like parts are referred to in the following description and indicated 111 all the views of the drawings by the same reference characters.

My improved ventilator is particularly designed for use upon street cars which are, as is well known, overcrowded at certain times while at other times contain but few passenger-s, thus necessitating frequent regulation of the ventilation within the car, although it is to be understood that the device is also'applicable for use upon other types of cars. In the drawings, I have shown the ventilator which is designated as a whole at 10, in position within the upper reduced portion or monitor of a street car, such portion of the car being conventionally shown, and wherein 11 indicates the body portion of the car, 12, the side walls of the monitor, and 13, the roof. As is well known,

the side walls 12 are usually provided with windows and preferably, my improved ventilator is arranged to extend between one pair of oppositely disposed windows being of such width at its ends to occupy and be secured to the upper sections of the sashes of such windows, the ventilator, of course, communicating with the outer air.

More particularly and as is best shown in Fig. 3 of thedrawings, the general configuration of my improved ventilator is of parallel piped construction, the body portion 14 thereof being preferably substantially rectangular in cross section and including the upper and lower walls 15 and 16, the spaced parallel intermediate wall 17, and the side,

walls 18. It will be observed that the intermediate wall 17 is so arranged as to form upper and lower compartments extending longitudinally of the body portion, and the upper wall 15 1s cut away to provide a plurality of openings 19, preferably three in number, while the lower wall 16 is cut away to provide similar openings 20, the said openings 20 being preferably two in number and larger than the openings 19. Attached to the walls 15 and 16 in any suitable manner are screens of wire or other suitable material 21 which each cover the openings formed in the adjacent wall.

The body portion 14: of the ventilator may I be formed of any suitable material but is preferably constructed of sheet metal and at its extremities the several walls thereof are inclined downwardly as shown at 22, and the walls 15, 16, and 17, thereof are thence extended beyond the extremities of the side walls 18 to provide laterally enlarged ofifset portions 23. Secured to the outer extremity of each of said offset portions is a face plate 24: which is provided with suitable apertures 25 communicating with the upper and lower air compartments of the ventilator, and secured to each of said plates 24: and bearing against the adjacent inclined side edges of the laterally enlarged ofi'set portions 23 are side walls 26 which form a continuation of the side walls 18 of the body portion of the ventilator and converge inwardly from the adjacent face plate 24 to the adjacent extremity of each of the downwardly inclined portions 22 of the body portion 14. By this construction, it will be observed that the openings 25 formed in each of the face plates as are of a width greater than the width of the draft compartments of the body portion 1a and said openings 25 communicating with the outer air will thus admit air to such compartments in such proportions as to have a tendency to create a draft within the body portion of the ventilator. The face plates 2 1 are operatively secured to the side walls 18 of the car in any suitable manner and it is to be noted that the converging walls 26 um mediately adjacent each of the face plates 2e form throats adjacent the opposite extremities of the body portion 14 the purpose of which will be presently described.

Arranged within the openings 25 of each of the face plates 2% are upper and lower shutters 27 and 28, the upper shutters 27 being each mounted upon a suitable operating rod 29 to turn therewith, said rods being arranged to extend transversely through the walls of the ventilator adjacent the face plates at, while each of the lower shutters 28 is arranged to turn with an operating sleeve 30 surrounding each of the rods 29. Independent adjustment of the shutters 27 and 28 within the openings 25 of the face plates is thus secured.

In the practical use of the device, it is designed that air be admitted through the lower compartment of the ventilator and in adjusting the shutters 28, it is intended that the extremities of said shutters facing the direction in which the car is moving shall be swung outwardly to thus deflect the outer air within the lower compartment of the ventilator, and it is to be noted that the converging walls 26 which provide throats adj acent the opposite extremities of the ventilator terminate at their inner extremities or at the point where said throats are most narrow at the outer extremitles of the 1nclined walls 22. Said throats will normally have a tendency to create a draft flowing inwardly of the lower compartment and will deliver the air currents against the adjacent inclined portions of the bottom wall 16, which inclined portions will deflect said currents upwardly to contact with the solid intermediate wall 17 again deflect said currents of air downwardly to be discharged through the openings 20 formed in said bottom wall. By this arrangement, it will be observed that the ventilator is so constructed as to be adapted for adjustment through a relative movement of the shutters 28 to admit either a relatively large or small quantity of air, and may also be adjusted by reversing the inclination of the shutters 28 so that the extremities of said shutters facing the direction of movement of the car may be swung to project outwardly, when the movement of the car is reversed.

To further provide for the regulation of the infiowing air currents, 1 preferably provide adjacent the inner extremities of the converging walls 26, transversely arranged shutters 81 which are mounted to turn with suitable operating rods 32, said shutters being disposed within the lower compartment of the ventilator and adapted to normally completely close the said compartment. Said shutters are so arranged as to arrest the flow of incoming air currents at the point where said currents would normally attain their greatest velocity or at the inner extremities of the converging walls 26 as will be clear, and said shutters may be adjusted, as desired, to increase or diminish the quantity of air to be admitted to the lower compartment of the ventilator.

To obviate the possibility of incoming air currents entering through the ventilator from being so delivered into the interior of the car as to cause a draft upon the passengers, I have provided a draft pan or deflector 33 which preferably includes a solid bottom wall 34, and side walls 35,'the deflector being preferably wider than the body portion 1a of the ventilator and being arranged to bear against the bottom wall 16 intermediate the adjacent inclined portions thereof. Said deflector may be supported in any suitable manner as by a bracket 36, arranged to connect the deflector with the intermediate portion 37 of the bottom wall 16.

The side walls of the deflector are preferably cut away upon opposite sides as shown at 88 to facilitate the egress of air currents directed into the deflector and it will be noted that said deflector is so constructed and arranged as to partially arrest the incoming air currents in their downward movement within the car. The side walls 35 of said deflector are preferably inclined outwhich in turn will wardly as shown, and thus have a tendency upon coming in contact with air currents flowing into the deflector to direct said currents laterally within the car, the proper distribution of the incoming air currents within the car being thus insured.

The incoming air currents being directed downwardly within the car, will cause the hot or foul air contained therein to be forced toward the upper part of the car, and I have accordingly provided a construction wherein such hot or foul air may be led from within the car to be discharged exteriorly thereof. To accomplish this result in practical use, the upper shutters 27 are set so that the extremities thereof facing away from the direction in which the car is moving are caused to project outwardly, and as will be clear, the forward motion of the car will thus cause a current of air to flow rapidly over and apast the extremities of said shutters so projected, creating a. suction or draft within the adjacent extremities of the upper compartment of the ventilator. Such suction will in turn act to draw the hot 01 foul air contained within the car through the openings 19 formed in the upper wall 15 to be discharged exteriorly of the car.

It is to be noted that in the upper compartment of the ventilator the air currents are flowing in the opposite direction from the air currents within the lower compartment and thus approach the throats formed by the converging walls 26 adjacent the extremities of said compartment upon the side opposite to that presented to the air currents in their movement within the lower compartment. Said throats within the upper compartment, therefore, will act to retard the movements of the air currents within such compartments to thus partly overcome the action of the suction created by the shutters 27 to accordingly prevent an egress of too great an amount of warm air from the car but it is to be noted that said. shutters 27 may also be adjusted at any desired relative angle within the adjacent openings 25 of the face plates to thus further regulate the flow of outgoing air currents within the ventilator.

It will thus be seen that I provide a very simple construction which may be readily attached to any ordinary type of car as now in common use and which provides a construction whereby a constant and positive flow of air into the car and a similar flow of hot or foul air to be discharged exteriorly of the car, is maintained. It will also be seen that I provide a construction wherein the incoming air currents are so distributed within the car as to not cause a draft upon the passengers, and wherein the air currents passing within the ventilator may be readily and positively regulated, as desired, to either permit the egress of a relatively large 1. A device of the character described including a body portion providing upper and lower isolated compartments communicating with the outer air and opening through the walls of the body portion upon the upper and lower sides thereof, adjustable means for admitting air to the lower compartment, independently adjustable means mounted within said lower compartment for controlling the flow of air therethro-ugh, and independently adjustable means for permitting the egress of air through the upper compartment.

2. A device of the character described including a body portion providing compartments communicating with the outer air and opening through the walls of the body portion, end sections carried. by the body portion and being offset therefrom to-provide inclined deflecting walls within-said compartments, and independently adjustable means carried by said sections for regulating the flow of air therethrough to-contact with said inclined deflecting walls.

3. A device of the character described including a body portion providing compartments communicating with the outer air and opening through the upper and lower walls of the body portion, adjustable means operatively connected to the body portion for admitting the flow of air through said compartments, independently adjustable means for regulating the flow of air through said compartments, and a deflector open upon one side and carried by the body portion, said deflector being arranged adjacent the lower wall thereof.

4. A device of the character described including a body portion providing compartments communicating with the outer air and opening through the walls of said body portion, adjustable means operatively connected to the body portion for regulating the flow of air through said compartments, and independently adjustable means operatively connected to the body portion and arranged Within one of said compartments intermediate the ends thereof for controlling the flow of air therethrough, said last mentioned means coacting with said first mentioned means arranged in said compartment.

5. A device of the character described including a body portion providing compartments communicating with the outer air and opening through the upper and lower walls of the body portion, adjustable means operatively connected to the body portion for controlling the fiow of air through said compartments, and auxiliary adjustable controlling means arranged in one of said compartments, said last mentioned means being operatively connected to the body portion and being arranged to coact with said first mentioned means arranged in said compartment.

6. A device of the character described including a body por ion having upper and lower Walls and an intermediate wall extending longitudinally thereof to provide upper and lower compartments within the body portion, said compartments communi eating with the outer air, the upper and lower walls of the body portion having openings formed therein communicating with said compartments, means operatively connected to the body portion for controlling the flow of air through the lower compartment, and independently adjustable means operatively connected to the body portion for controlling the flow of air through the upper compartment.

7 A device of the character described including a body portion having upper and lower walls and an intermediate wall extending longitudinally thereof to provide upper and lower compartments, the upper and lower walls of the body portion having openings formed therein communicating with said compartments, laterally enlarged end sections carried by the body portion and provided with openings communicating with said compartments, said sections also being formed with inwardly converging walls providing throats within said compartments adjacent the extremities of the body portion, and independently adjustable means for controlling the flow of air through said compartments.

8. A device of the character described including a body portion having upper and lower walls, side walls, and a wall extending longitudinally of the body portion intermediate the upper and lower walls to pro- .vide compartments communicating with the outer air, said upper and lower walls having openings formed therein communicating with said compartments, said upper and lower, and intermediate walls being oifset adjacent their extremities and thence 6X- tended to provide laterally enlarged portions, face plates secured to the extremities of said walls, said plates having openings formed therein communicating with said compartments and being provided with inwardly converging side walls arranged to bear against the inclined edges of the upper and lower, and intermediate walls of the body portion contiguous with the laterally enlarged portions thereof and forming a continuation of the side walls of the body portion, and means arranged within the openings formed in said face plates for controlling the flow of air through said compartments.

9. A device of the character described including a body portion providing compartments communicating with the outer air and opening through the upper and lower walls of the body portion, horizontally arranged shutters disposed within said compartments adjacent the outer extremities thereof, an operating rod operatively connected to the body portion and carrying one of said shutters, said rod being adapted to move said shutter in either direction within the adjacent compartment, a sleeve surrounding the operating rod and carrying the other shutter, said sleeve being adapted to turn said shutter in either direction within the adjacent compartment, each of said shutters being arranged to control the flow of air through the adjacent compartment.

10. A device of the character described including a body portion providing upper and lower compartments communicating with the outer air and opening through the upper and lower walls of the body portion, a shutter arranged in the upper compartment, a shutter arranged in the lower compartment, said shutters being independently adjustable to control the flow of air through said compartments, and an auxiliary shutter arranged within the lower compartment adjacent one extremity thereof, and adapted to further regulate the flow of air through said compartment.

11. A device of the character described including a body portion having upper and lower walls and providing compartments communicating with the outer air, said upper and lower walls having openings formed therein communicating with said compartments, means for regulating the flow of air through said compartments, and a draft pan carried by the body portion, said pan including solid bottom and side walls, the side walls being inclined outwardly and arranged to bear at their upper edges against the bottom wall and surround ing the opening formed in said wall communicating with the adjacent compartment of the body portion, the walls of said pan being cut away upon opposite sides thereof to permit a flow of air laterally out of said pan.

In testimony whereof I aflix my signature in presence of two witnesses.

WILLIAM J. COLEMAN. [n a] Witnesses SIMON J. COLEMAN,

JOSEPH D. UPPLING.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner or" Eatents, Washington, D. 0. 

